TW4020 Single Band GNSS Antenna





Surface Mount / Magnet / Adhesive

Amplifier Gain

28 dB typ.

Connector Options

Many Options, Please Inquire

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The TW4020 is a compact, commercial grade GNSS antenna covering GPS/QZSS L1 and SBAS (WAAS/EGNOS/MSAS).


  • 40% wider bandwidth, small footprint
  • Axial ratio: 1dB typ (GPS )
  • Low noise LNA: 1 dB
  • High rejection SAW filter
  • High gain: 28 dB typ.
  • Wide voltage input range: 2.5 to 16 VDC
  • IP67 weather proof housing


  • Increased system accuracy
  • Excellent signal to noise ratio
  • RoHS compliant
  • Ideal for harsh environments
  • Excellent out of band signal rejection


Featuring a precisely tuned, single feed patch element that achieves 40% wider bandwidth than competitive antennas, the TW4020 supports 1 dB RHCP received power across the full frequency. Additionally, the TW4020 has a dual stage Low Noise Amplifier (LNA) with a mid-section SAW that supports a great axial ratio across the full frequency.

The TW4020 is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.

LNA Pre-filter Available
If you need enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi, the alternative TW4022 provides these additional benefits with an LNA pre-filter. Click here to learn more about the TW4022.


TW4xxx Housed Drawing
Dimensions in Millimeters